Chimney-cowl.



H. GUTSCHMIDT.

CHIMNEY COWL.

APPLICATION FILED JUNE 15. 1915.

1,1663%. Patented Dec. 28, 1915.

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H. GUTSCHMIDT.

CHIMNEY COWL.

APPLl 1915- 1.,16636. Patented Dec. 28, 1915.

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I o I By W I /gr f ATTORNEYS COLUMBXA PLANOGRAPH ($0., WASHINGTON. Dl c.

I-IERMANN GUTSCHMIDT, OF JERSEY CITY, NEW JERSEY.

CHIMNEY-COWL.

Specification of Letters Eatent.

Patented Dec. 26, 1915.

Application filed June 15, 1915. Serial No. 3 1,196.

To all whom it may concern:

Be it known that I, l-IERMANN GUT- sorrMmT, a citizen of the United States, and a resident of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and Improved Chimney-Cowl, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved chimney cowl arranged to provide a free, unobstructed escape of the smoke coming up the chimney or smoke stack on which the cowl is applied, and to prevent back draft especially when high winds prevail and in case'the cowl is located adjacent the wall. a

In order to accomplish the desired result, use is made of a draft flue provided exteriorlywith a conical water table, a mantle surrounding the said water table and eX- tending above the top edge of'the said draft flue, the said mantle being provided at the upper end with a top having wind inlets "and deflectors, one for each windinlet, and

attached to and depen'dingfrom the said top, each deflector being formed-of angular sides having its backedge extending downwardly and outwardly over the upper edge of the said draftflue, the upper edges of the said sides fitting the side edges of the main "wind inlets and the front edges ofthe said deflector sides being approximately-parallel to and spacedfrom the said mantle, the front outlet ends of thedeflectors decreasing in width from the top downward and adjacent deflectors being spaced apart to form smoke outlets for the passage of'tlie smoke from the draft flue into the mantle, the smoke outlets increasing in width from the top downward to allow the smoke to expand into the mantle A practical embodiment of the invention is represented in the accompanying drawings forming a. part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a central vertical section of the chimney cowl as applied to a chimney and as arranged adjacent to a wall; Fig. 2

is a sectional plan view of the chimney cowl on the line 22 of Fig. 1, and with the wall shield removed; and Fig. 3 is a perspective view of the mantle top and the deflectors for the wind and forming smoke outlets.

. A vertically disposed draft flue A is setwith its base on the top of a chimney orsmoke stack B, and the upper end A of the draft flue A is preferably made cylindrical. and to the outer face thereof is soldered or otherwise secured a conical water table C surrounded by a cylindrical mantle or wind shield D held in place by brackets E attached to the water table C and the free end A. The mantle D is spaced from the lower edge of the water table C to provide an outlet space for the smoke and wind, as herein after more fully explained. The upper end of the mantle D extends a distance above the upper edge of the flue end A and to the said upper mantle end is seamed or otherwise secured a top F, preferably made flat, as

shown in Figs. 1 and 3.

The top F is provided with a series of main wind inlet openings: F, preferably triangular in shape with the apexes eXtending toward the center of the top F, as plainly indicated in Fig. 2, and with the bases spaced from the outer edge of the top.

Deflectors G, one for each wind inlet F, are

attached to the top F and depend from the same, each deflector G being formed of two angular sides fitting at their upper ends the sidewalls of the wind inlet F. The back G of each deflector G extends downwardly and outwardly and rests near its lower end on the upper edge of the flue end A, the lower end of the back G terminating a short distance above the water table C. The front edges of the sides of each deflector G are dis posed approximately parallel to the mantle D and the said front edges provide an outlet forthe wind into the mantle D and which outlet gradually increases in width from the top downward. By the arrangement described any wind that strikes the top F of the chimney cowl passes through the deflectors G and is directed by the same into the mantle and over the table G into and through the space between the outer edge of the water table C and the mantle D. By constructing the deflectors G in the manner described adjacent sides of adjacent deflectors G form smoke outlets H to connect the flue end A with the mantle D, the said smoke outlets H increasing in width from the top downward, as plainly indicated in Fig. 1, so that the'smoke passing from the end A through the outlets H can readily expand and pass into the mantle D and down through the space between the outer edge of the water. table 0 and the mantle D.

It will be noticed that by this arrangement,

the wind passing down the deflectors G and the smoke passing through the outlets H are not liableto mix and a free escape is provided for each and at the same time the wind passing down the deflectors 'tends to produce a suction in the smoke outlets H to readily draw the smoke out of the smoke flue into the mantle D and to force the same down through the space between the outer edge of the water table C and themantle D. 'Thus by the arrangement described all back draft in the'smoke flue A is prevented especially when high winds prevail.

In order to distribute the wind striking the top F uniformly to the deflectors G the central portion F of the top F is preferably made spherical, as plainly indicated in Figs. 1 and 2, and in order to uniformly distribute the smoke to the smoke outlets H the under side of the top F is provided with a spherical distributer F arranged centrally on the top F and intersected by the deflectors G.

The lower edge of the water table 0 is preferably provided with a downwardly extending flange C, the lower edge of which is flush with the lower edge of the mantle D, thus providing a well defined passage for the wind and the smoke between the water table C and the mantle D. It will also be noticed that anv rain water that passes down the deflectors G is delivered to the water table C down which the water flows to eventually drop off the lower end of the flange C. In order to reinforce the water table G the latter is provided with a bottom C of conical shape having its outer end attached to the outer end of the water table C at the beginning of the flange C.

In order to readily accommodate a large volume of wind, use is made of supplementary airinlets F formed in the top F intermediate the main wind inlets F and case there is none or very little wind, the

the outer edge of the top F. The material cut out of the top F to form supplementary wind inlets F is bent downward at the inner wall of the inlet to form a depending flange F to deflect the wind entering the inlet F in a downward direction without interfering with the flue or the wind passing down the corresponding deflector G. In

smoke passing through the smoke outlets H into the mantle D can readily rise and pass out in an upward direction through the deflectors G and the supplementary wind L, the shield being in dish form and disposed vertically with the open end toward the wall K, as plainly indicated in Fig. 1. By this arrangement any wind that strikes the wall K is deflected therefrom and passes into the shield L to scatter the wind in a vertical direction and thus prevent the same from striking the chimney cowl proper. The shield L is provided at its inner end with suitable hooks L, L adapted to be moved onto the corresponding portion of the mantle D to removably support the shield L on the mantle.

The chimney cowl shown and described is simple and durable in construction, and is composed of comparatively few parts, not liable to get out of order easily.

Having thus'described my invention, I claim as new and desire to secure by Letters Patent:

1. A chimney cowl, comprising a draft flue, a conical water table exteriorly attached to the said draft flue, a mantle surrounding the said water table and extending above the top edge of the said draft flue, a top above the said draft flue and provided with main wind inlets and deflectors, one for ,each Wind inlet, and'attached to and depending from the said top, each deflector being formedof angular sides having its back edge extending downwardly and outwardly over the upper edge of the said draft flue, the upper edges of the said sides fitting the side edges of the main wind inlets and the front edges of the said deflector sides being approximately parallel and spaced from the said mantle, the front outlet ends of the deflectors decreasing in width from the top downward, and adjacent deflectors being spaced apart to form smoke outlets for the passage of the smoke from the draft flue into the mantle, the smoke outlets increasing in width from the top downward.

2. A chimney cowl, comprising a draft flue, a conical water table attached exteriorly to the draft flue a distance below the top thereof, a cylindrical mantle supported from the said .water table and having its upper edge a distance above the upper end'of the said draft flue the mantle being spaced from the edge of the water table to form an outlet for the smoke and wind, a top closing the upper end of the saidmantle and provided with approximately triangularly shaped main wind inlets arranged in a circle, and deflectors attached to and depend ing from the said top, one at each main wind inlet, each deflector being formed of two angular sides having a common back inclined downwardly and outwardly and extending over the top edge of the draft flue and terminating at its lower edge at the said water table, the outer edges of the sides of the said deflector being approximately parallel, the adjacent sides of adjacent deflectors being spaced apart to form lateral smoke outlets gradually increasing in width from the top downward to allow the smoke to expand on its passage from the draft flue into the mantle.

3. A chimney cowl, comprising a draft flue a conical Water table attached eX- teriorly to the draft flue a distance below the top thereof, a cylindrical mantle supported from the said water table and having its upper edge a distance above the upper end of the said draft flue, the mantle being spaced from the edge of the water table to form an outlet for the smoke and wind, a top closing the upper end of the said mantle and provided with approximately triangularly shaped main wind inlets arranged in a circle, the top being also provided with 3 auxiliary wind inlets intermediate the said main wind inlets and the outer edge of the top, and deflectors attached to and depending from the said top one at each main wind inlet, each deflector being formed of two angular sides having a common back inclined downwardly and outwardly and extending over the top edge of the draft flue and terminating at its lower edge at the said water table, the outer edges of the sides of the said deflector being approximately parallel, the adjacent sides of adjacent deflectors being spaced apart to form lateral smoke outlets gradually increasing in width from the top downward to allow the smoke to expand on its passage from the draft flue into the mantle.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HERMANN GUTSGHMIDT.

Witnesses:

Gnono ZIEGLER, Trrno. Gr. Hos'rER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

